Name the primary sections of a stationary gas turbine engine and their general purposes.

• A. Inlet (air intake), fan, combustor, turbine, exhaust.
• B. Compressor (air compression), combustor (fuel burning), turbine (shaft power extraction), exhaust (gas discharge), and the accessory gearbox (drives pumps and accessories).
• C. Compressor, combustor, turbine, exhaust.
• D. Compressor, combustor, turbine, exhaust, and the airframe.

Answer: (B)

The essential idea is how a stationary gas turbine turns air and fuel into useful shaft power through a simple energy- conversion path: compress air, add heat, extract work, and discharge the exhaust, with a driven system to support operation.

The compressor raises the incoming air to a higher pressure so fuel can burn efficiently and produce more energy per mass of air. The combustor blends that compressed air with fuel and burns it, adding heat to the flow. The turbine then expands the hot, high-energy gas to extract shaft power, which also drives the compressor and the accessory gearbox. Finally, the exhaust releases the spent gas to the atmosphere. The accessory gearbox is driven by the turbine and powers pumps and other accessories needed to run the engine.

So, the listed sections—compressor, combustor, turbine, exhaust, and the accessory gearbox—together describe the main functional blocks and their roles in producing and delivering mechanical power.